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| Mirrors > Home > MPE Home > Th. List > vsnid | Structured version Visualization version GIF version | ||
| Description: A setvar variable is a member of its singleton. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| vsnid | ⊢ 𝑥 ∈ {𝑥} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 3438 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | 1 | snid 4613 | 1 ⊢ 𝑥 ∈ {𝑥} |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2110 {csn 4574 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2112 ax-9 2120 ax-ext 2702 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1544 df-ex 1781 df-sb 2067 df-clab 2709 df-cleq 2722 df-clel 2804 df-v 3436 df-sn 4575 |
| This theorem is referenced by: exsnrex 4631 rext 5387 unipw 5389 xpdifid 6112 opabiota 6899 fnressn 7086 fressnfv 7088 snnex 7686 frrlem12 8222 frrlem14 8224 mapsnd 8805 findcard2d 9071 ac6sfi 9163 iunfi 9222 elirrvOLD 9479 kmlem2 10035 fin1a2lem10 10292 hsmexlem4 10312 iunfo 10422 modfsummodslem1 15691 lcmfunsnlem2lem1 16541 coprmprod 16564 coprmproddvdslem 16565 c0snmgmhm 20373 lbsextlem4 21091 frlmlbs 21727 coe1fzgsumdlem 22211 evl1gsumdlem 22264 maducoeval2 22548 dishaus 23290 dis2ndc 23368 dislly 23405 dissnlocfin 23437 comppfsc 23440 txdis 23540 txdis1cn 23543 txkgen 23560 isufil2 23816 alexsubALTlem4 23958 tmdgsum 24003 dscopn 24481 ovolfiniun 25422 volfiniun 25468 jensen 26919 uvtx01vtx 29368 cplgr1vlem 29400 unidifsnel 32505 gsumpart 33027 extdg1id 33669 irngss 33690 esum2dlem 34095 bnj1498 35063 funen1cnv 35090 fineqvnttrclselem2 35110 wevgblacfn 35121 cvmlift2lem1 35314 funpartlem 35955 topdifinffinlem 37360 fvineqsneq 37425 pibt2 37430 finixpnum 37624 mbfresfi 37685 pclfinN 39918 sn-iotalem 42233 mzpcompact2lem 42763 dvmptfprod 45962 fourierdlem48 46171 sge0sup 46408 funressnvmo 47055 dfclnbgr6 47866 dfsclnbgr6 47868 termco 49492 termcarweu 49539 diag1f1o 49545 diag2f1o 49548 |
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